situation: I have a running EJB-application (Castor example from Terry Child). I copied over the complete Jboss3.04 directory to another machine to exactly the same directory. I also copied my JDK directory and corrected all environment variables.
Now if I start Jboss on the other machine, the app gets deployed with no problems. But if I access the app, the following exception occurs:
java.rmi.ServerError: Unexpected Error; nested exception is: java.lang.LinkageError: loader constraints violated when linking javax/transaction/UserTransaction class